A Japanese soldier puts a casualty next to the Kyotoku-maru fishing trawler that was swept inland during the tsunami that followed the 2011 Tōhoku earthquake and tsunami in the city of Kesennuma, Miyagi, Japan, March 26, 2011. (Photo/Mark Pearson)

A tsunami inundation sign on the evacuation road after the 2011 Tōhoku earthquake and tsunami in the city ofKamaishi, Iwate Prefecture. March 20, 2011. (Photo/Mark Pearson)

Destroyed fishing boat in Ofunato, Iwate, Japan, March 23, 2011. (Photo/Mark Pearson) Almost all of the 29,000 fishing boats in Miyagi, Iwate, and Fukushima prefectures were rendered unusable after the 2011 Tōhoku earthquake and tsunami struck.12,000 fishing boats in Miyagi prefecture were destroyed or damaged, and at least 440 fishermen were killed or missing.

The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea. A house in Ofunato, Iwati Prefecture, March 26, 2011. (Photo/Mark Pearson)

The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea. A house in Ofunato, Iwati Prefecture, March 26, 2011. (Photo/Mark Pearson)

The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea. Destroyed houses in Yamada, Iwati Prefecture, Japan, March 26, 2011. (Photo/Mark Pearson)

The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea. Destroyed houses in Yamada, Iwati Prefecture, Japan, March 26, 2011. (Photo/Mark Pearson)

A destroyed fishing boat in Ofunato, Iwate, Japan, March 23, 2011. (Photo/ Mark Pearson) Almost all of the 29,000 fishing boats in Miyagi, Iwate, and Fukushima prefectures were rendered unusable after the 2011 Tōhoku earthquake and tsunami struck.12,000 fishing boats in Miyagi prefecture were destroyed or damaged, and at least 440 fishermen were killed or missing.

Destroyed houses in Yamada, Iwati Prefecture, Japan, March 26, 2011. (Photo/Mark Pearson) The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea.

A destroyed fishing boat in Miyako city centre, Iwate, Japan, March 23, 2011. (Photo/ Mark Pearson) Almost all of the 29,000 fishing boats in Miyagi, Iwate, and Fukushima prefectures were rendered unusable after the 2011 Tōhoku earthquake and tsunami struck.12,000 fishing boats in Miyagi prefecture were destroyed or damaged, and at least 440 fishermen were killed or missing.

A destroyed tug boat smashed through a housing estate in Ofunato, Iwate, Japan, March 22, 2011. (Photo/ Mark Pearson) Almost all of the 29,000 fishing boats in Miyagi, Iwate, and Fukushima prefectures were rendered unusable after the 2011 Tōhoku earthquake and tsunami struck.12,000 fishing boats in Miyagi prefecture were destroyed or damaged, and at least 440 fishermen were killed or missing.

A destroyed boat in Kamaishi, Iwate, Japan, March 23, 2011. (Photo/ Mark Pearson) Almost all of the 29,000 fishing boats in Miyagi, Iwate, and Fukushima prefectures were rendered unusable after the 2011 Tōhoku earthquake and tsunami struck.12,000 fishing boats in Miyagi prefecture were destroyed or damaged, and at least 440 fishermen were killed or missing.

Sea defence wall in Yamada, Iwati Prefecture, Japan, March 26, 2011. (Photo/Mark Pearson) The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea.

A Japanese soldier puts a casualty next to the Kyotoku-maru fishing trawler that was swept inland during the tsunami that followed the 2011 Tōhoku earthquake and tsunami in the city of Kesennuma, Miyagi, Japan, March 26, 2011. (Photo/Mark Pearson)

A tsunami inundation sign on the evacuation road after the 2011 Tōhoku earthquake and tsunami in the city ofKamaishi, Iwate Prefecture. March 20, 2011. (Photo/Mark Pearson)

Destroyed fishing boat in Ofunato, Iwate, Japan, March 23, 2011. (Photo/Mark Pearson) Almost all of the 29,000 fishing boats in Miyagi, Iwate, and Fukushima prefectures were rendered unusable after the 2011 Tōhoku earthquake and tsunami struck.12,000 fishing boats in Miyagi prefecture were destroyed or damaged, and at least 440 fishermen were killed or missing.

The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea. A house in Ofunato, Iwati Prefecture, March 26, 2011. (Photo/Mark Pearson)

The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea. A house in Ofunato, Iwati Prefecture, March 26, 2011. (Photo/Mark Pearson)

The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea. Destroyed houses in Yamada, Iwati Prefecture, Japan, March 26, 2011. (Photo/Mark Pearson)

The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea. Destroyed houses in Yamada, Iwati Prefecture, Japan, March 26, 2011. (Photo/Mark Pearson)

A destroyed fishing boat in Ofunato, Iwate, Japan, March 23, 2011. (Photo/ Mark Pearson) Almost all of the 29,000 fishing boats in Miyagi, Iwate, and Fukushima prefectures were rendered unusable after the 2011 Tōhoku earthquake and tsunami struck.12,000 fishing boats in Miyagi prefecture were destroyed or damaged, and at least 440 fishermen were killed or missing.

Destroyed houses in Yamada, Iwati Prefecture, Japan, March 26, 2011. (Photo/Mark Pearson) The Government of Japan estimated that the 2011 Tōhoku earthquake and tsunami destroyed 120,000 buildings, damaged 220,000 others, and washed another 78,000 buildings into the sea.

A destroyed fishing boat in Miyako city centre, Iwate, Japan, March 23, 2011. (Photo/ Mark Pearson) Almost all of the 29,000 fishing boats in Miyagi, Iwate, and Fukushima prefectures were rendered unusable after the 2011 Tōhoku earthquake and tsunami struck.12,000 fishing boats in Miyagi prefecture were destroyed or damaged, and at least 440 fishermen were killed or missing.

A destroyed tug boat smashed through a housing estate in Ofunato, Iwate, Japan, March 22, 2011. (Photo/ Mark Pearson) Almost all of the 29,000 fishing boats in Miyagi, Iwate, and Fukushima prefectures were rendered unusable after the 2011 Tōhoku earthquake and tsunami struck.12,000 fishing boats in Miyagi prefecture were destroyed or damaged, and at least 440 fishermen were killed or missing.

A destroyed boat in Kamaishi, Iwate, Japan, March 23, 2011. (Photo/ Mark Pearson) Almost all of the 29,000 fishing boats in Miyagi, Iwate, and Fukushima prefectures were rendered unusable after the 2011 Tōhoku earthquake and tsunami struck.12,000 fishing boats in Miyagi prefecture were destroyed or damaged, and at least 440 fishermen were killed or missing.